<?php

namespace Podlove\Template;

/**
 * File Template Wrapper.
 *
 * @templatetag file
 */
class File extends Wrapper
{
    /**
     * @var Podlove\Model\MediaFile
     */
    private $file;

    public function __construct(\Podlove\Model\MediaFile $file)
    {
        $this->file = $file;
    }

    // /////////
    // Accessors
    // /////////

    /**
     * File id.
     *
     * @accessor
     */
    public function id()
    {
        return $this->file->id;
    }

    /**
     * Episode related to this file.
     *
     * @see  episode
     * @accessor
     */
    public function episode()
    {
        return new Episode($this->file->episode());
    }

    /**
     * Asset related to this file.
     *
     * @see  asset
     * @accessor
     */
    public function asset()
    {
        return new Asset($this->file->episode_asset());
    }

    /**
     * Size in bytes.
     *
     * @accessor
     */
    public function size()
    {
        return $this->file->size;
    }

    /**
     * URL.
     *
     * The real file URL. For public facing URLs, use `.publicUrl`.
     *
     * @accessor
     */
    public function url()
    {
        return $this->file->get_file_url();
    }

    /**
     * Public URL.
     *
     * If tracking is active, this generates the tracking URL.
     * Otherwise, it's identical to `.url`.
     *
     * - source: download source for tracking, for example "webplayer", "download" or "feed"
     * - context: (optional) download context for tracking, for example "home"/"episode"/"archive" for player source or feed slug for feed source
     *
     * **Examples**
     *
     * ```jinja
     * {{ file.publicUrl('download', 'episode') }}
     * ```
     *
     * @accessor
     *
     * @param mixed      $source
     * @param null|mixed $context
     */
    public function publicUrl($source, $context = null)
    {
        return $this->file->get_public_file_url($source, $context);
    }

    protected function getExtraFilterArgs()
    {
        return [$this->file];
    }
}